org.eclipse.swt.internal.widgets.ControlRemoteAdapter Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2015 EclipseSource and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* EclipseSource - initial API and implementation
******************************************************************************/
package org.eclipse.swt.internal.widgets;
import static org.eclipse.rap.rwt.internal.util.MnemonicUtil.removeAmpersandControlCharacters;
import static org.eclipse.rap.rwt.remote.JsonMapping.toJson;
import static org.eclipse.swt.internal.widgets.MarkupUtil.isToolTipMarkupEnabledFor;
import java.util.Arrays;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Cursor;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Shell;
public class ControlRemoteAdapter extends WidgetRemoteAdapter {
private static final int PARENT = 11;
private static final int BOUNDS = 12;
private static final int CHILDREN = 13;
private static final int TOOL_TIP_TEXT = 14;
private static final int MENU = 15;
private static final int FOREGROUND = 16;
private static final int BACKGROUND = 17;
private static final int FONT = 18;
private static final int CURSOR = 19;
private static final int VISIBLE = 20;
private static final int ENABLED = 21;
private static final int BACKGROUND_IMAGE = 22;
private static final int ACTIVE_KEYS = 23;
private static final int CANCEL_KEYS = 24;
private static final int TAB_INDEX = 25;
private static final int ORIENTATION = 26;
private static final String PROP_PARENT = "parent";
private static final String PROP_BOUNDS = "bounds";
private static final String PROP_CHILDREN = "children";
private static final String PROP_TAB_INDEX = "tabIndex";
private static final String PROP_TOOLTIP_TEXT = "toolTip";
private static final String PROP_MENU = "menu";
private static final String PROP_VISIBLE = "visibility";
private static final String PROP_ENABLED = "enabled";
private static final String PROP_ORIENTATION = "direction";
private static final String PROP_FOREGROUND = "foreground";
private static final String PROP_BACKGROUND = "background";
private static final String PROP_BACKGROUND_IMAGE = "backgroundImage";
private static final String PROP_FONT = "font";
private static final String PROP_CURSOR = "cursor";
private transient Composite parent;
private transient Control[] children;
private transient Rectangle bounds;
private transient int tabIndex;
private transient String toolTipText;
private transient Menu menu;
private transient boolean visible;
private transient boolean enabled;
private transient boolean rtl;
private transient Color foreground;
private transient Color background;
private transient boolean backgroundTransparency;
private transient Image backgroundImage;
private transient Font font;
private transient Cursor cursor;
private transient String[] activeKeys;
private transient String[] cancelKeys;
public ControlRemoteAdapter( String id ) {
super( id );
}
public void preserveParent( Composite parent ) {
if( !hasPreserved( PARENT ) ) {
markPreserved( PARENT );
this.parent = parent;
}
}
public void renderParent( Control control ) {
if( isInitialized() && hasPreserved( PARENT ) ) {
Composite actual = control.getParent();
if( changed( actual, parent, null ) ) {
getRemoteObject().set( PROP_PARENT, toJson( actual ) );
}
}
}
public void preserveChildren( Control[] children ) {
if( !hasPreserved( CHILDREN ) ) {
markPreserved( CHILDREN );
this.children = children;
}
}
public void renderChildren( Composite composite ) {
if( !isInitialized() || hasPreserved( CHILDREN ) ) {
Control[] actual = composite.getChildren();
if( changed( actual, children, null ) ) {
getRemoteObject().set( PROP_CHILDREN, toJson( actual ) );
}
}
}
public void preserveBounds( Rectangle bounds ) {
if( !hasPreserved( BOUNDS ) ) {
markPreserved( BOUNDS );
this.bounds = bounds;
}
}
public void renderBounds( IControlAdapter controlAdapter ) {
if( !isInitialized() || hasPreserved( BOUNDS ) ) {
Rectangle actual = controlAdapter.getBounds();
if( changed( actual, bounds, null ) ) {
getRemoteObject().set( PROP_BOUNDS, toJson( actual ) );
}
}
}
public void preserveTabIndex( int tabIndex ) {
if( !hasPreserved( TAB_INDEX ) ) {
markPreserved( TAB_INDEX );
this.tabIndex = tabIndex;
}
}
public void renderTabIndex( Control control ) {
if( hasPreserved( TAB_INDEX ) ) {
int actual = ControlUtil.getControlAdapter( control ).getTabIndex();
if( !isInitialized() || actual != tabIndex ) {
getRemoteObject().set( PROP_TAB_INDEX, actual );
}
}
}
public void preserveToolTipText( String toolTipText ) {
if( !hasPreserved( TOOL_TIP_TEXT ) ) {
markPreserved( TOOL_TIP_TEXT );
this.toolTipText = toolTipText;
}
}
public void renderToolTipText( Control control ) {
if( hasPreserved( TOOL_TIP_TEXT ) ) {
String actual = control.getToolTipText();
if( changed( actual, toolTipText, null ) ) {
String text = actual == null ? "" : actual;
if( !isToolTipMarkupEnabledFor( control ) ) {
text = removeAmpersandControlCharacters( text );
}
getRemoteObject().set( PROP_TOOLTIP_TEXT, text );
}
}
}
public void preserveMenu( Menu menu ) {
if( !hasPreserved( MENU ) ) {
markPreserved( MENU );
this.menu = menu;
}
}
public void renderMenu( Control control ) {
if( hasPreserved( MENU ) ) {
Menu actual = control.getMenu();
if( changed( actual, menu, null ) ) {
getRemoteObject().set( PROP_MENU, toJson( actual ) );
}
}
}
public void preserveVisible( boolean visible ) {
if( !hasPreserved( VISIBLE ) ) {
markPreserved( VISIBLE );
this.visible = visible;
}
}
public void renderVisible( Control control ) {
if( hasPreserved( VISIBLE ) ) {
boolean actual = control.getVisible();
if( changed( actual, visible, control instanceof Shell ? false : true ) ) {
getRemoteObject().set( PROP_VISIBLE, actual );
}
}
}
public void preserveEnabled( boolean enabled ) {
if( !hasPreserved( ENABLED ) ) {
markPreserved( ENABLED );
this.enabled = enabled;
}
}
public void renderEnabled( Control control ) {
// Using isEnabled() would result in unnecessarily updating child widgets of
// enabled/disabled controls.
if( hasPreserved( ENABLED ) ) {
boolean actual = control.getEnabled();
if( changed( actual, enabled, true ) ) {
getRemoteObject().set( PROP_ENABLED, actual );
}
}
}
public void preserveOrientation( int orientation ) {
if( !hasPreserved( ORIENTATION ) ) {
markPreserved( ORIENTATION );
rtl = orientation == SWT.RIGHT_TO_LEFT;
}
}
public void renderOrientation( Control control ) {
if( !isInitialized() || hasPreserved( ORIENTATION ) ) {
// [if] Don't use control.getOrientation() as some controls (like SashForm) override this
// method to return vertical/horizontal orientation only
boolean actual = ( control.getStyle() & SWT.RIGHT_TO_LEFT ) == SWT.RIGHT_TO_LEFT;
if( changed( actual, rtl, false ) ) {
getRemoteObject().set( PROP_ORIENTATION, actual ? "rtl" : "ltr" );
}
}
}
public void preserveForeground( Color foreground ) {
if( !hasPreserved( FOREGROUND ) ) {
markPreserved( FOREGROUND );
this.foreground = foreground;
}
}
public void renderForeground( IControlAdapter controlAdapter ) {
if( hasPreserved( FOREGROUND ) ) {
Color actual = controlAdapter.getUserForeground();
if( changed( actual, foreground, null ) ) {
getRemoteObject().set( PROP_FOREGROUND, toJson( actual ) );
}
}
}
public void preserveBackground( Color background, boolean transparency ) {
if( !hasPreserved( BACKGROUND ) ) {
markPreserved( BACKGROUND );
this.background = background;
backgroundTransparency = transparency;
}
}
public void renderBackground( IControlAdapter controlAdapter ) {
if( hasPreserved( BACKGROUND ) ) {
Color actualBackground = controlAdapter.getUserBackground();
boolean actualTransparency = controlAdapter.getBackgroundTransparency();
boolean colorChanged = changed( actualBackground, background, null );
boolean transparencyChanged = changed( actualTransparency, backgroundTransparency, false );
if( transparencyChanged || colorChanged ) {
RGB rgb = null;
int alpha = 0;
if( actualBackground != null ) {
rgb = actualBackground.getRGB();
alpha = actualTransparency ? 0 : actualBackground.getAlpha();
} else if( actualTransparency ) {
rgb = new RGB( 0, 0, 0 );
}
getRemoteObject().set( PROP_BACKGROUND, toJson( rgb, alpha ) );
}
}
}
public void preserveBackgroundImage( Image backgroundImage ) {
if( !hasPreserved( BACKGROUND_IMAGE ) ) {
markPreserved( BACKGROUND_IMAGE );
this.backgroundImage = backgroundImage;
}
}
public void renderBackgroundImage( IControlAdapter controlAdapter ) {
if( hasPreserved( BACKGROUND_IMAGE ) ) {
Image actual = controlAdapter.getUserBackgroundImage();
if( changed( actual, backgroundImage, null ) ) {
getRemoteObject().set( PROP_BACKGROUND_IMAGE, toJson( actual ) );
}
}
}
public void preserveFont( Font font ) {
if( !hasPreserved( FONT ) ) {
markPreserved( FONT );
this.font = font;
}
}
public void renderFont( IControlAdapter controlAdapter ) {
if( hasPreserved( FONT ) ) {
Font actual = controlAdapter.getUserFont();
if( changed( actual, font, null ) ) {
getRemoteObject().set( PROP_FONT, toJson( actual ) );
}
}
}
public void preserveCursor( Cursor cursor ) {
if( !hasPreserved( CURSOR ) ) {
markPreserved( CURSOR );
this.cursor = cursor;
}
}
public void renderCursor( Control control ) {
if( hasPreserved( CURSOR ) ) {
Cursor actual = control.getCursor();
if( changed( actual, cursor, null ) ) {
getRemoteObject().set( PROP_CURSOR, toJson( actual ) );
}
}
}
public void preserveActiveKeys( String[] activeKeys ) {
markPreserved( ACTIVE_KEYS );
this.activeKeys = activeKeys;
}
public boolean hasPreservedActiveKeys() {
return hasPreserved( ACTIVE_KEYS );
}
public String[] getPreservedActiveKeys() {
return activeKeys;
}
public void preserveCancelKeys( String[] cancelKeys ) {
markPreserved( CANCEL_KEYS );
this.cancelKeys = cancelKeys;
}
public boolean hasPreservedCancelKeys() {
return hasPreserved( CANCEL_KEYS );
}
public String[] getPreservedCancelKeys() {
return cancelKeys;
}
@Override
public void clearPreserved() {
super.clearPreserved();
parent = null;
children = null;
bounds = null;
tabIndex = 0;
toolTipText = null;
menu = null;
visible = false;
enabled = false;
rtl = false;
foreground = null;
background = null;
backgroundTransparency = false;
backgroundImage = null;
font = null;
cursor = null;
activeKeys = null;
cancelKeys = null;
}
private Object readResolve() {
initialize();
return this;
}
private boolean changed( boolean actualValue, boolean preservedValue, boolean defaultValue ) {
return actualValue != ( isInitialized() ? preservedValue : defaultValue );
}
private boolean changed( Object actualValue, Object preservedValue, Object defaultValue ) {
return !equals( actualValue, isInitialized() ? preservedValue : defaultValue );
}
private boolean changed( Object[] actualValue, Object[] preservedValue, Object[] defaultValue ) {
return !Arrays.equals( actualValue, isInitialized() ? preservedValue : defaultValue );
}
private static boolean equals( Object o1, Object o2 ) {
return o1 == o2 || o1 != null && o1.equals( o2 );
}
}
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